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Finding the Fourth Proportional to 58,726.89, 87,979.50 and 45,514.62

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Solution

The fourth proportional to 58,726.89, 87,979.50 and 45,514.62 is: 68,186.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,726.89 : 87,979.50 = 45,514.62 : x
  2. Step 2: Convert to fraction form
    58,726.89/87,979.50 = 45,514.62/x
  3. Step 3: Cross multiply
    58,726.89x = 87,979.50 × 45,514.62
  4. Step 4: Simplify right side
    58,726.89x = 4,004,353,510.29
  5. Step 5: Solve for x
    x = 4,004,353,510.29/58,726.89
  6. Step 6: Final answer
    x = 68,186.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.